<template>
  <transition name="move">
    <div class="food" v-show="foodDetailShow" ref="food">
      <div class="food-content">
        <div class="image-header">
          <img :src="selectedFood.image">
          <div class="back" @click="hide">
            <i class="iconfont icon-arrow_lift">&#xe667;</i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{selectedFood.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{selectedFood.sellCount}}份</span>
            <span class="rating">好评率{{selectedFood.rating}}%</span>
          </div>
          <div class="price">
            <span class="now">￥{{selectedFood.price}}</span><span class="old" v-show="selectedFood.oldPrice">￥{{selectedFood.oldPrice}}</span>
          </div>
          <div class="cartcontrol-wrapper">
            <cart-control :food="selectedFood"></cart-control>
          </div>
          <transition name="fade">
            <div class="buy" v-show="showBuy" @click="addFirst">加入购物车</div>
          </transition>
        </div>
        <split v-show="selectedFood.info"></split>
        <div class="info" v-show="selectedFood.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{selectedFood.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <rating-select :selectType="selectType"
                         :onlyContent="onlyContent"
                         :desc="desc"
                         :ratings="selectedFood.ratings"
                         @handleType="handleType"
                         @handleContent="handleContent">
          </rating-select>
          <div class="rating-wrapper">
            <ul v-show="showRatings">
              <li class="rating-item border-bottom"
                  v-for="(rating,index) in selectedFood.ratings"
                  v-show="needShow(rating.rateType,rating.text)"
                  :key="index">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img class="avatar" width="12" height="12" :src="rating.avatar">
                </div>
                <div class="time">{{rating.rateTime | formatDate}}</div>
                <p class="text">
                  <span class="iconfont" :class="{'icon-dianzan':rating.rateType===0,'icon-buzhichi':rating.rateType===1}"></span>
                  {{rating.text}}
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!showRatings">暂无评价</div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
import Vue from 'vue'
import Bscroll from 'better-scroll'
import {formatDate} from '../../assets/js/date'
import CartControl from '../cartcontrol/CartControl'
import RatingSelect from '../ratingselect/RatingSelect'
import Split from '../split/Split'
const ALL = 2
export default {
  name: 'FoodDetail',
  props: {
    selectedFood: Object
  },
  components: {
    CartControl,
    Split,
    RatingSelect
  },
  data () {
    return {
      foodDetailShow: false,
      selectType: ALL,
      onlyContent: true,
      desc: {
        all: '全部',
        positive: '推荐',
        negative: '吐槽'
      }
    }
  },
  computed: {
    showBuy () {
      return !this.selectedFood.count || this.selectedFood.count === 0
    },
    showRatings () {
      return this.selectedFood.ratings && this.selectedFood.ratings.length
    }
  },
  methods: {
    show () {
      this.foodDetailShow = true
      this.selectType = ALL
      this.onlyContent = true
      this.$nextTick(() => {
        if (!this.scroll) {
          this.scroll = new Bscroll(this.$refs.food, {
            click: true
          })
        } else {
          this.scroll.refresh()
        }
      })
    },
    hide () {
      this.foodDetailShow = false
    },
    addFirst () {
      Vue.set(this.selectedFood, 'count', 1)
    },
    needShow (type, text) {
      if (this.onlyContent && !text) {
        return false
      }
      if (this.selectType === ALL) {
        return true
      } else {
        return type === this.selectType
      }
    },
    handleType (type) {
      this.selectType = type
    },
    handleContent (content) {
      this.onlyContent = content
    }
  },
  filters: {
    formatDate (time) {
      let date = new Date(time)
      return formatDate(date, 'yyyy-MM-dd hh:mm')
    }
  }
}
</script>

<style lang="stylus" scoped>
  .food
    position:fixed
    left:0
    bottom:48px
    top:0
    z-index:30
    width:100%
    background-color:#fff
    transition:all 0.2s linear
    &.move-transition
      transform:translate3d(0,0,0)
    &.move-enter,&.move-leave-active
      transform:translate3d(100%,0,0)
    .image-header
      position:relative
      width:100%
      height:0
      padding-top:100%
      img
        position: absolute
        top: 0
        left: 0
        width: 100%
        height: 100%
      .back
        position:absolute
        top:10px
        left:0
        .icon-arrow_lift
          display: block;
          padding: 5px;
          font-size: 20px;
          color: #fff;
          background-color: rgba(35, 35, 35, 0.5);
          border-radius: 50%;
    .content
      position: relative
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 8px
        font-size: 14px
        font-weight: 700
        color: rgb(7, 17, 27)
      .detail
        margin-bottom: 18px
        line-height: 10px
        height: 10px
        font-size: 0
        .sell-count, .rating
          font-size: 10px
          color: rgb(147, 153, 159)
        .sell-count
          margin-right: 12px
      .price
        font-weight: 700
        line-height: 24px
        .now
          margin-right: 8px
          font-size: 14px
          color: rgb(240, 20, 20)
        .old
          text-decoration: line-through
          font-size: 10px
          color: rgb(147, 153, 159)
      .cartcontrol-wrapper
        position: absolute
        right: 12px
        bottom: 12px
      .buy
        position: absolute
        right: 18px
        bottom: 18px
        z-index: 10
        height: 24px
        line-height: 24px
        padding: 0 12px
        box-sizing: border-box
        border-radius: 12px
        font-size: 10px
        color: #fff
        background: rgb(0, 160, 220)
        transition: all 0.4s
        &.fade-transition
          opacity: 1
        &.fade-enter, &.fade-leave
          opacity: 0
    .info
      padding: 18px
      .title
        line-height: 14px
        margin-bottom: 6px
        font-size: 14px
        color: rgb(7, 17, 27)
      .text
        line-height: 24px
        padding: 0 8px
        font-size: 12px
        color: rgb(77, 85, 93)
    .rating
      padding-top: 18px
      .title
        line-height: 14px
        margin-left: 18px
        font-size: 14px
        color: rgb(7, 17, 27)
      .rating-wrapper
        padding: 0 18px
        .rating-item
          position: relative
          padding: 16px 0
          .user
            position: absolute
            right: 0
            top: 16px
            line-height: 12px
            font-size: 0
            .name
              display: inline-block
              margin-right: 6px
              vertical-align: top
              font-size: 10px
              color: rgb(147, 153, 159)
            .avatar
              border-radius: 50%
          .time
            margin-bottom: 6px
            line-height: 12px
            font-size: 10px
            color: rgb(147, 153, 159)
          .text
            line-height: 16px
            font-size: 12px
            color: rgb(7, 17, 27)
            .icon-dianzan, .icon-buzhichi
              margin-right: 4px
              line-height: 16px
              font-size: 12px
            .icon-dianzan
              color: rgb(0, 160, 220)
            .icon-buzhichi
              color: rgb(147, 153, 159)
        .no-rating
          padding: 16px 0
          font-size: 12px
          color: rgb(147, 153, 159)
</style>
